Thomas Midgeley Jr. discovered that adding tetraethyl lead to gasoline reduced knocking in automobile engines.
21st June 1919: The German High Seas naval fleet is scuttled at Scapa Flow
21st June 2019
Thomas Midgeley Jr. discovered that adding tetraethyl lead to gasoline reduced knocking in automobile engines.
28th June 2015
11th November 2022
11th November 2022
9th November 2019